Well, I am beginning to get my teeth into these questions with the aim of refighting Edgehill. I am essentially looking for away of playing the big battles rather than skirmishes. I thought Edgehill was a good starter because it can be used to test Swedish v Dutch cavalry deployment (3 ranks as opposed to 6), and standard 'battalia' against 'big brigades (Swedish)'. At present I am looking at the size of units, and not working on all the complexities of ammunition etc. So, do what it is worth, the following are my first thoughts!
Standard unit: For Edgehill I thought about 250 horse or dragoons, or 450-500 foot would make a useful base unit. My existing 10mm collections have either 10musketeers, 16 pikes or 5 horse on a 1 1/2" square base. So, a standard unit is three bases, side by side, and fits into a 150cm square. My Parliamentarian foot would be a straightforward 18 battalia of 2:1 musket to pike. Job done. Now, how to do a Swedish brigade of Royalists? Well, if I do a single unit on the same scale, I end up with an 8 hit permanently disordered behemoth which will never be destroyed. So, either change the hit system, or represent it as multiple elements? No contest. Multiple elements it is. My SBs will be four standard bases, two boxes wide, two deep. It will be one unit up, two side by side in the second line, one behind in the third line. My first thought for Edgehill is to give the Royalists lots of pike, and so make the first line all pike, the second line two units with 1/2 musket to pike ratio, and a third line of 2/1. So a total of 6/6 pikes and muskets. I am currently leaning to having them move together, difficult moves being doubly difficult as befits deep units, changing facing by 90 degrees being doubly, doubly difficult, and impossible if any part of the unit is in an enemy ZOC. In combat they fight, and suffer disorder and elimination, as single units. If the centre unit is in melee, the flank units can only be in shooting combat. As I think this out as I type, given that the centre front unit straddles two squares, when it attacks one or other of this front squares, that wing of the brigade gets a shot at disordering the enemy before melee. Ammo would be allocated to each base of musketeers, so in this case there could be two shots. Enough for now, I am still thinking! A Diagram of my Swedish brigade would be: